<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>数据联动</title>
</head>

<body>
  <div>
    省份：
    <select id="selProvince"></select>
    城市：
    <select id="selCity"></select>

    <button id="btnOk">确定</button>
    <span id="spInfo"></span>
  </div>


  <script src="js/link.js" type="module"></script>

</body>

</html>